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Second Edition, 1997
Libreria Editrice Vaticana
2302 By recalling the commandment, "You shall not kill," 94 our Lord asked for peace of heart and denounced murderous anger and hatred as immoral.
Anger is a desire for revenge. "To desire vengeance in order to do evil to someone who should be punished is illicit," but it is praiseworthy to impose restitution "to correct vices and maintain justice." 95 If anger reaches the point of a deliberate desire to kill or seriously wound a neighbor, it is gravely against charity; it is a mortal sin. The Lord says, "Everyone who is angry with his brother shall be liable to judgment." 96
2303 Deliberate hatred is contrary to charity. Hatred of the neighbor is a sin when one deliberately wishes him evil. Hatred of the neighbor is a grave sin when one deliberately desires him grave harm. "But I say to you, Love your enemies and pray for those who persecute you, so that you may be sons of your Father who is in heaven." 97
2304 Respect for and development of human life require peace. Peace is not merely the absence of war, and it is not limited to maintaining a balance of powers between adversaries. Peace can not be attained on earth without safeguarding the goods of persons, free communication among men, respect for the dignity of persons and peoples, and the assiduous practice of fraternity. Peace is "the tranquility of order."98 Peace is the work of justice and the effect of charity. 99
2305 Earthly peace is the image and fruit of the peace of Christ, the messianic "Prince of Peace." 100 By the blood of his Cross, "in his own person he killed the hostility," 101 he reconciled men with God and made his Church the sacrament of the unity of the human race and of its union with God. "He is our peace." 102 He has declared: "Blessed are the peacemakers." 103
2306 Those who renounce violence and bloodshed and, in order to safeguard human rights, make use of those means of defense available to the weakest, bear witness to evangelical charity, provided they do so without harming the rights and obligations of other men and societies. They bear legitimate witness to the gravity of the physical and moral risks of recourse to violence, with all its destruction and death. 104
2307 The fifth commandment forbids the intentional destruction of human life. Because of the evils and injustices that accompany all war, the Church insistently urges everyone to prayer and to action so that the divine Goodness may free us from the ancient bondage of war. 105
2308 All citizens and all governments are obliged to work for the avoidance of war.
2266 However, "as long as the danger of war persists and there is no international authority with the necessary competence and power, governments cannot be denied the right of lawful self-defense, once all peace efforts have failed." 106
2309 The strict conditions for legitimate defense by military force require rigorous consideration. The gravity of such a decision makes it subject to rigorous conditions of moral legitimacy. At one and the same time:
These are the traditional elements enumerated in what is called the "just war" doctrine.
1897 The evaluation of these conditions for moral legitimacy belongs to the prudential judgment of those who have responsibility for the common good.
2310 Public authorities, in this case, have the right and duty to impose on citizens the obligations necessary for national defense.
2239-1909 Those who are sworn to serve their country in the armed forces are servants of the security and freedom of nations. If they carry out their duty honorably, they truly contribute to the common good of the nation and the maintenance of peace. 107
2311 Public authorities should make equitable provision for those who for reasons of conscience refuse to bear arms; these are nonetheless obliged to serve the human community in some other way. 108
2312 The Church and human reason both assert the permanent validity of the moral law during armed conflict. "The mere fact that war has regrettably broken out does not mean that everything becomes licit between the warring parties." 109
2313 Noncombatants, wounded soldiers, and prisoners must be respected and treated humanely.
Actions deliberately contrary to the law of nations and to its universal principles are crimes, as are the orders that command such actions. Blind obedience does not suffice to excuse those who carry them out. Thus the extermination of a people, nation, or ethnic minority must be condemned as a mortal sin. One is morally bound to resist orders that command genocide.
2314 "Every act of war directed to the indiscriminate destruction of whole cities or vast areas with their inhabitants is a crime against God and man, which merits firm and unequivocal condemnation." 110 A danger of modem warfare is that it provides the opportunity to those who possess modern scientific weapons - especially atomic, biological, or chemical weapons - to commit such crimes.
94 Mt 5:21.
95 St. Thomas Aquinas, STh II II, 158, 1 ad 3.
96 Mt 5:22
97 Mt 5:44 45.
98 St. Augustine, De civ. Dei, 19, 13,1: PL 41, 640.
99 Cf. Isa 32:17; cf. GS 78 §§ 1 2.
100 Isa 9:5.
101 Eph 2:16 J.B.; cf. Col 1:20 22.
102 Eph 2:14.
103 Mt 5:9.
104 Cf. GS78§5.
105 Cf. GS 81 § 4.
106 GS 79§4.
107 Cf. GS 79 § 5.
108 Cf. GS 79 § 3.
109 GS 79 § 4.
110 GS 80 § 3.
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